If you feel the need to complain about any of Nationwide UK services, here is the data that you will need to take your first steps: Emails, complaints numbers and the Ombudsman:
You can visit any of the Nationwide branch (their contact details can be checked through each specific Nationwide branch page )
Other option is sending the details by mail at the Nationwide Building Society contact address UK: The Complaints Team, Nationwide Building Society, NW 2020, Swindon, SN38 1NW.
You also have an option to call them at Nationwide complaint phone number UK 0800 302 015 or when calling from abroad: +44 179 365 6789 from Mon- Fri 8 am – 6 pm and Sat 9 am – 12:30 pm.
The easiest way is to send the message through Nationwide UK customer service chat and complaints form. You can use this uption Mon- Sun 8 am – 7:45 pm.
If, in case, not satisfied with the given outcome or the issue has not been resolved, you can refer it to the Financial Ombudsman Service (FOS) for an independent review. FOS can be contacted at their helpline 0800 023 4567 or, when calling from abroad: +44 207 964 0500 or via their email [email protected] or at their address: Financial Ombudsman Service, Exchange Tower, London, E14 9SR
If you are a business customer and have any complaints in regard to the services, you can get in touch with the Nationwide business customer services UK either over the telephone at Nationwide business customer service phone number UK 0800 665 511
or via mail at Nationwide business contact address UK: Business Savings, Nationwide Building Society, Kings Park Road, Moulton Park Northampton, NN3 6NW.
If not satisfied with the given outcome, you can refer the matter to FOS. FOS details are mentioned above and can be checked on this page.